National Item Identification Number
01-122-0253
011220253
5305-01-122-0253
5305011220253
National Stock Number
Item Name
SCREW,CAP,HEXAGON HEAD
Federal Supply Class
5305
Description
An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, MACHINE; BOLT, EXTERNALLY RELIEVED BODY; BOLT, INTERNAL WRENCHING; and SCREW, CAP, SOCKET HEAD.
Commercial and Government Entity Code (Supplier Data)
24617
72915
GENERAL MOTORS CORP
ELECTRO-MOTIVE DIV
9301 W 55TH ST
430
LA GRANGE
IL
60525
708-387-6000
73183
FERRCO PRODUCTS INC
5021 W 161ST ST
BROOKPARK
OH
44142
216-267-6666
Reference Numbers (Part Numbers)
179818
179818
179818
Required Categories
THREAD SERIES DESIGNATOR
NOMINAL THREAD DIAMETER
THREAD QUANTITY PER INCH
THR
Required Description
UNC
0.312 INCHES
18
2A
RIGHT-HAND
0.845 INCHES MINIMUM AND
0.875 INCHES MA
